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Domain Time II > Instructions > Misc > Domain Time II Management Tools - Graphs


    Many Domain Time II programs contain graphs that help you visually determine how your systems are performing. This page explains about the items on the graphs, and also shows you various comparison graphs to give you an idea of how useful they can be at analyzing time performance.

      Graph Legend
      Domain Time II Graphs share common features and display characteristics.

      • Graph Scale Each graph allows you to adjust the scale used to plot the graph to the level that shows you the most information. The Auto setting will usually adjust the scale so that all data will fit in the display area. In some cases, the Auto setting will derive the scale to be used from other settings in the program.

      • Data Points Each data point on the graph is based upon data collected by the reporting program. At least two data samples are necessary to be able to construct a graph.

          The color used to represent the data point is based on the following criteria:
          Clear  The clock matched the time source, no sync was done
          Green  The clock was fewer than 55 ms off from its source when it was synchronized
          Yellow  The clock was fewer than 125 ms off from the source
          Red  The clock was more than 125 ms off from the source

      Graph Types

      Each Domain Time II component that provides graphs displays the graphs in a format appropriate to that application.

      • The graphs from the Domain Time II Monitor Service are typically the most flexible and provide the most information, since many types of historical data are available to draw upon.

    Graph Types

      • The DT Test utility lets you select the machine whose clock you want to graph.

        DT Test Utility Graph

      • The DTTray System Tray applet provides a drift graph showing the performance of the local clock on individual systems.

        Drift Graph Display


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